a
The cohort life expectancy at a given age for a given year represents the
average number of years of life remaining if a group of persons at that age
were to experience the mortality rates for the series of years in which they
reach each succeeding age.b
Cohort life expectancy at birth for those born on January 1 of the calendar
year is based on a combination of actual and estimated death rates for birth
years 1940 through 2006. For birth years after 2006,
these values are based solely on estimated death rates.c
Age 65 cohort life expectancy for those attaining age 65 on January 1 of
calendar years 1940 through 2006 are either based on actual death rates or
on a combination of actual and estimated death rates. After 2006, these
values are based solely on estimated death rates.